Double wheel caster



FIG. 1 is a plan view of a double wheel caster showing my new design;

FIG. 2 is a front view;

FIG. 3 is a right side view;

FIG. 4 is a left side view;

FIG. 5 is a bottom view; and,

FIG. 6 is a perspective view.

The ornamental design for a double wheel caster, as shown and described.